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(No Model.) 3 Sheets-Sheet 1.

R. CHRISTIE.

SINGLE DRIVE WHEEL HARVESTER. No. 247,482. Patented Sept. 27,1881.

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(No Model.) I 3 Sheets-Sheet 2.

R. CHRISTIE. SINGLE DRIVE WHEEL HARVESTER. No. 247,482. Patented Sept. 27,1881.

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R. CHRISTIE. SINGLE DRIVE 'WHEEL HARVE$TER.

No. 247,482. Patented Sept. 27,1881.

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UNITED STATES PATENT OFFICE.

ROBERT CHRISTIE, OF HAMILTON, ONTARIO, CANADA.

SINGLE DRIVE-WHEEL H'ARVESTER.

SPECIFICATION forming part of Letters Patent No. 247,482, dated September 2'7, 18 81.

Application filed May 23, 1881. (No model.) Patented in Canada December 1, 1880.

To all whom it may concern:

Be it known that I, ROBERT CHRISTIE, of the city of Hamilton, in the county of Wentworth, in the Province of Ontario, Dominion of Canada, have invented certain new and useful Improvements in Sin gle-Drive-Wheel Harvesters and I do hereby declare that the following is a full, clear, and exact description of the construction and operation of the same.

The said invention relates to improvements which are calculated to simplify, cheapen, and make saidmachines more effective for the work intended. I

This invention relates to improvements in that class of harvesters in which a single drivewheel is employed to support and operate the machine.

The objects of my invention are to improve the construction of the main frame, to provide a simple construction of parts for throwing the driving mechanism in and out of gear, to provide means for raising and lowering the platform and guiding it in its vertical movements, to provide simple devices for operating the rakes, to construct the rake-stand so as to bring the center of the rake-head in line with the cutter-bar, and to prevent the rear end of the grain-platform from sagging.

The invention is illustrated in the accompanying drawings, in which Figure 1 is a plan view of the machine. Fig; 2 is a partial side view. Fig. 3 is a top view of the rake-head cam. Fig. 4 is a plan view of the shipper Figs. 5 and 6 are front and sideviews of rake-stand device for tripping the rakes. Figs.7 and 8 are side and end views of ratchet-spring block. Figs. 9 and 10 are plan and top views of lifting-lever. Fig. 11 is an enlarged view of device for putting the machine out of gear. Figs. 12 and 13 are plan and side views of main frame of one casting.

Figs. 14,15, and 16 are side, cross, and bottom views, respectively, of device for preventing the rear portion of the platform from sagging; Figs. 17 and 18, a side elevation and bottom view, respectively, of the tilting-lever socket. y

A isthe mainframe, of iron, cast in one entire piece, as shown in Figs. 12 and 13, and aslight as allowable for the weight and draft of the machine. I v

B is the main drive-wheel, cast in the manner common to harvesters.

G D are main-shaft journal hearings or boxes on the main frame A, one on each side, (the inner one, D, is shown at Fig. 2,) and are for the purpose of receiving the main shaft T.

E is a similar bearing on the inner side of the rear portion of the frame, and F its counterpart on the outside part of the frame, (see Fig. 2,) immediately opposite the former, to receive what I call the intermediate stationary shaft, G, the said shaft being for the purpose of carrying the intermediate gear. A seatspring socket, I, is cast on the other side of the frame A in the form shown in Fig. 1, making it solid with the frame, and is for the purpose of acting as a socket or holder for the seat-spring J, which is made to slip in it, and to which the seat is secured.

K is a vertical guide-hole cast in the frame, having a raised projection around'it on the upper andunder side, and is for the purpose of receiving the guide-bar K, which is affixed to the platform of the machine.

L are quadrant ratchet-teeth cast on the outer side of the frame, as shown at Fig. 2, and are for holding the lever V in any position, it being connected to the platform by a chain, L. Depressing or raising the lever elevates or lowers the said platform, and the ratchet-teeth hold the same by means of the ratchet-dog W (which is secured to the said lever) dropping into them at any angle of the lever, andholding the platform at any desired height.

M is a spur-wheel on the main shaft T, engaging with spring-block N, which is provided with ratchet-teeth to correspond with those on the said wheel. A stud, O, is attached to said block, as shown at Fig. 7. The block Nlies in a pocket or box, P, in the drive-wheel B. The opposite end ofthe studpasses throughacurved slot, N, of the shipper hand-wheel S, said slot having a cam, O, on its inner margin. A pin, 00, passes through said stud and bears against the cam-slot in the wheel, and is for the purpose ofdrawing the spring-block out of gear with the wheel. A spiral spring, R, is made iiillllllllllllliWultimatum....

to surround the said stud O, which pushes the ratchet-blockNagainst the ratchet ofthe wheel M. The above devices are for putting the machine in and out of gear by simply turning the shipper hand-wheel S as required.

Q is a boss on the drive-wheel, surrounding the opening for the ratchet-stud.

Hisacasingorcovering,formed bytheroundin g elevation ofthe frame immediately over the intermediate gear, which it covers and protects.

Visa lifting-lever, with dog-rod Z and spring Yattached in the usual manner. Its lower end is provided with a lever-dog, W, which drops in the ratchet L, and its fulcrum is on the stationary shaft G.

a is a lug cast on the lever-circle, to receive and hold the dog-rod Z and spring Y in position. (I is a tilting-lever socket, with groove e'cast in the front corner of the frame for the purpose of receiving the foot-rest 0, which is made to slip into it and be confined therein, which is a simple and secure contrivance for that purpose.

f is a tongue-brace, attached at one end to the tilting-lever socket and the other to the tongue 6 of the machine.

9 is a tilting hinge, formed of wrought-iron, and secured to the tongue 2' by bolts to a, and also by a hinge-bolt, a passing through the tongue, the tilting hinge, the tongue-brace, lever-socket, and frame, the whole forming a complete hinge, brace, and tilting device.

A rake-tripping-lever device is placed under the rake-head and connected to the foot-trip h by means of rods h and h, each of which is fastenedto a bell-crank,i, pivoted to the tongue, as shown. The said device is operated by the driver placing his foot on the aforesaid footplate; and it may be explained here that p is the rake-stand, (made in the form shown, so as to bring the center of the rake-head nearly on a line with the cutter-bar,) which causes the rake-head and cam to operate the rakes.

n is the bottom plate ofthe cam, havinga lug, 0, on its outside edge cast on it, through which a hole, 0, is made fora s'pindle, 70, to pass through horizontally, its inner end inserted in a recess, q, in the stand 1), to steady the spindle and act as ajournal to keep it in position. A trip-lever, I, is attached to the spindle 7c. Its upper portion passes up through a hole, o, in the bottom plate of cam, as shown at Fig. 5. A spiral spring, m, surrounds the said spindle k, for pressing the same inward toward the center of the rake-head. The bottom end of the trip-lever l has a connecting-rod, m, attached, the opposite end of which is secured to a pivoted weighted dog, n, for holding the gate 0 open, to allow the rakes to rise upward when they are not required to rake the grain off the table.

'r is a pin inserted through the said spindle, and. it may be placed on either side of the lug 0, so that it can be set to trip with foot when there is a gavel on the table. When the pin is removed, then the device is set to rake oif automatically every fourth rake.

It will be observed that the spring m on the slide-spindle k is fastened in such a manner that the trip-lever Z is always kept in an upright position when not tripping. Four lugs, 1, 2, 3, and 4, are cast on the inner edge of the outer circle of the rake-head A, and one, 5, on the outer edge of the inner circle, for the purpose of tripping the lever 1 when it comes in contact with them when the machine is in operation.

I construct a device for elevating the rear portion of the platform, to prevent it drooping after the machine has been some time in use, by means hereinafter mentioned, as shown at Figs. 14, 15, and 16, Sheet 1. I saw a horizontal slit or kerf, f, in the lower partot" the girth f-say aboutfrom four to fivefeetlong leaving a portion unsawed at each end. I then insert a wedge, g, in about the middle of the 'part of the girth which is separated by the slit or kerf f, that portion being protected with an iron clasp-casting, h, bolted to the girth, having an opening in it to receive the wedge g, which, when driven in a sufficient distance, separates the two portions of the girth, thereby straightening the latter and elevating the edge of the platform, which otherwise would become depressed and the rakes not perform all the duty of clean raking off.

What I claim as my invention is- 1. In combination with a single-drive-wheel harvester, the cast-iron frame A, constructed and provided with main-shaft bearings G and D, the bearings E and F for the intermediate stationary shaft, G, the rounded casing H for the intermediate gear, the socket I, as shown, for holding seat-spring J, the upright guidehole K, with raised projections around it on upper and lower side of frame, the quadrant ratchet-teeth L, cast on the part of the frame covering intermediate gear, the whole forming one single casting, substantially as and for the purpose specified.

2. The combination of the spur-wheel M and ratchet teeth U, cast on the side of arms and hub, the spring block N, with stud 0 cast on block, the pocket or box P for holding ratchetspring block N in position, cast on main drivewheel B, the boss Q, with hole for holding spring R and stud O, the spring R for pressing out block M, the shipper hand cam-wheel S on the main shaft T, as shown, and provided with a slotted cam, the whole forming a convenient device for connecting the parts together and governing the movements of put ting the machine in and out of gear.

3. The combination of the tilting lever socket d with flanged groove 0 and frame A, to receive the foot rest 0, as and for the purpose specified.

4. The rake-head A, cast with the lugs 1,2, 3, and 4. on its outer circle and the lug 5 on its inner circle, in combination with the pivoted roo upright trip-lever Zfor operating the rakes, subwedge g, substantially as and for the purpose stantially as described. described. 10

5. The combination of thetrip-lever l, trip- Dated at Hamilton Ontario, Canada, this lever slide-shaft k, spring m, pin 1', lug 0, recess 6th day of April, 1881.

5 q, opening 4;, connecting-rod m", and weighted ROBT. CHRISTIE.

dog n, as and for the purpose specified. In presence of 6. The combination, with the girth f, hav- W. J. MOINTYRE,

ing the slit or kerf f, of the clasp h and WM. BRUCE. 

